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Finding the Fourth Proportional to 447,601.91, 617,698.58 and 243,658.69

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Solution

The fourth proportional to 447,601.91, 617,698.58 and 243,658.69 is: 336,253.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,601.91 : 617,698.58 = 243,658.69 : x
  2. Step 2: Convert to fraction form
    447,601.91/617,698.58 = 243,658.69/x
  3. Step 3: Cross multiply
    447,601.91x = 617,698.58 × 243,658.69
  4. Step 4: Simplify right side
    447,601.91x = 150,507,624,055.12
  5. Step 5: Solve for x
    x = 150,507,624,055.12/447,601.91
  6. Step 6: Final answer
    x = 336,253.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.